/Engine/Source/Runtime/Engine/Public/Animation/MotionTrajectoryTypes.h
struct FTrajectorySample
float
AccumulatedSeconds
The relative accumulated time that this sample is associated with Zero value for instantaneous, negative values for the past, and positive values for the future
FVector
LinearVelocity
Linear velocity relative to the sampled in-motion object.
FTransform
Transform
Position relative to the sampled in-motion object.